Wood Stove Single Wall Pipe Clearance

Double wall stovepipe is used when you don t have 18 or more clearance from combustibles.

Wood stove single wall pipe clearance.

If the stove legs provide less than 6 inches of clearance 2 to 4 inches of hollow masonry laid to pro vide air circulation with a sheet of 24 gage sheet metal between the floor and the masonry is recommended. An 18 inch clearance to combustibles is required and these pipes feature an unheard of fume free finish. The ideal flue pipe assembly is one that rises straight up from the appliance flue collar and directly into the chimney with no elbows. When combining lengths remember to subtract 1 5 from each to account for overlap.

For single wall stovepipe the clearance space remains 18 inches. Double wall stove pipe on the other hand requires only 8 inches of clearance from the ceiling and 6 inches from a wall. For example a single wall stove pipe requires 18 inches of clearance from ceilings or walls. Double walled black stovepipe must be kept 6 inches away from combustible wall material as it connects with the chimney pipe.

Once these clearances are met you must convert your stove pipe to class a chimney pipe for proper venting of your stove. Eight to ten inch legs will provide more air space and. A straight up single wall flue pipe assembly. Use single wall black stove pipe from your stove to a thimble or ceiling transition box never inside a combustible wall or inside a chimney chase.

Single wall stove pipe radiates more heat into the room than double wall stove pipe and requires 18 clearance from combustible surfaces where double wall stove pipe requires only 6 from walls and 8 from ceilings when used horizontally. This pipe has a clearance of only 6 to combustible materials and keeps flue gases warm for better draft. Double wall pipe should not be cut. Double walled or close clearance stove pipe is used to connect your stove to the chimney.

For close clearance installations or mobile home installations use double wall stove pipe. The nfpa calls for an 18 clearance to combustible walls for single wall stove pipe.